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김영규(Kim Young Kyu),고영환(Ko Young Hoan),정이식(Jung Lee Sig),이상일(Lee Sang Il) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.11
This paper describes fault analysis of a SF. gas circuit breaker of a transformer in a hydro power plant which is connected to the 154㎸ line The fault is a single-line-to-ground fault, so that it gives power generation halt and economical loss. The analysis has been done in aspects of the status of the breaker, insulation degradation, surge invasion and earthing resistance of the switchyard.